Filter.



F. D. FREEMAN.

FILTER.

APPLICATION TILED JULY 24,1909. 955,787. Patented Apr. 19, 1910.

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To all whom it mag/concern:

- lie it known that I, FRANK D. FREEMAN, a

citizen of the United States, residing at- Minot, in theicounty of \Vardand'Sta'te'of North Dakota, have invented new and useful Improvements-in Filters, of which the following is a specification.

The purpose of this invention is the provision of 'a device designed most especially for separating or removing the impurities from hydro-carbons such as gasolene, naphtha and the like, the device being of such'construction as to admit otthe operation being continuous and of access being readily had to the interior for cleaning or making necessary repairs. f

The invention consists of the novel features, details of construction and combinations of parts which hereinafter will be more particularly set forth, illustrated in the acconipai'lying drawings and pointed out in the appended claims.

Referring to the drawings forming a part of-the specification: Figure 1 is a vertical central section of a filter or oil separator embodying the -.iuvention. Fig. 2 is a hori mutal section on theline 2--2 of Fig. '1. Fig. I) is a h(u'i;z(mtal section ,OlljtllO line- Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The device. comprises a tank or like receptacle l of any capacity and construction and provided at or near its lower end with a faucet 2 for drawing oil the sediment such as water and heavy oil. Hand holes 3,are provided in the sides of the tank near the upper end to admit of access being had to the interior of the tank for removal of the filtering element and the replacement thereofor for any other purpose. A partition 4: is located in the upper portion of the tank and slopes downward toward a central point which is provided with anopening 5 to admitof the gasolene or other hydrocarbon passing into the lower portion of the tank. The partition 4: is connected at its outer'edge tothe inner walls of the tank and has a series of small openings 6 near its upper edge for the passage of the gasolene from the lower portion of the tank into the upper portion. The partition 4 acts as a preli'ninar separatortoeflect separation of water and heavy oilifrom the lighter gaso tone or hydro-carbon.

Al filtering device is located the upper portion of the tank and is attached to-the under side of the-top and comprises arim or band 7 pendent from the top 8 of the tank,

a filtering element such as'a dia hragm 9 stretched over the lower end of 1316 run or hand 7, a clamp 10 for securing said diaphra m- .to the rim, and a reinforcementll attac led to the rim 'or' band 7 and" located v Specification is: LettersPatentQ v atent etl Apr-.19, 1910. Application filedJuly 24.1909. serialr 509,299.

above the diaphragm 9. The clamp 10 may i consist of a ring' adapted to encircle the rim -or band 7 and havin its end portion out turnedand connected y means ofa. setscrew 12. The reinforcement 11 may consist of apiece of wire fabric whichis soldered or otherwise attached, to the rim gor band 7. An outflow pipe 13' is connected .with' the to 86f the tank and: eommn'ni-;

cates with t 0) interior oftherfilter. AI1 il1 I PiPF 14 m -a i h h upp -e." area. Of the tank exteri t th filter an" 6a as fronra reservoir or other source of Suppl?" of gasolene, hydro-carbon or thelike to be purified in its passage to the storage tank or other container.

The gasolene or other hydro-carbon o1"- liquid to bepurified is admitted, into the upper portion of the tank 1 by metins of the in-tlow pipe 14 and after being received upon the partition 4 is directed to the central out-lot 5 and passes into the lower portion of the tank in which it rests and passes into the upper portion of the tank through the small opening 6. The water, heavy oil or the like contained in the gasol'ene is separated therefrom in the lower portion of the tank below the partition 4 and the lighter hydro-carbon passes by said partition dinto theupper portion of the tank through the openings 6 of'said partition. After the tank becomes filled, the lighter gasolene or hydrocarbon in the upper portion of the tank passes through the filtering device into the outflow pipe 13 when th e valve controlling outlet thereof is open. The'filtering diaphragin 9 preferably consists of ehamois skin although any suitable hide or textile may be employed which Wlll msure a thorough separation of the impurities from the gasolene.

uni

25 Having the wire fabric or reinforcement 11 which supports the diaphragm 9 against said pressure. So long as the in-flow and, the out "'Piflow R PeS' are' open, the circulation and .okoperation are continuous.

;.- The in-fiow pipe 14 extends into the space formed between the partition and the top,

"of -the receptacle andterminates at its inner lower end in a lateral extension 15 which curves in its length and terminates near the inner wall of the receptacle. -The urpose of this construction is to'impart to t e gaso- Ilene'or other hydro-carbon or liquid to be 'separated a whirling motion. The whirling motion imparted to-the gasolene IS SIIfiiCIGIIt to cause the heavier matter, such as heavy .oils, water andcthe like to move outward and coming in contact with the downwardly iii-- clmed sides of the separating T29 move downward on said partitlon toward partition 4;

the central opening 5 by gravitativ'e action I whence they fall to thebottom of the tank to be drawn ofl from time to time by means of the faucet 2.

is claimed is 1. An oil separator comprising a tank provided in itslower portion with means for drawing off the precipitantand having '30 a filter in its upper portion, an infl0w pipe connected with the u per portion of the tank exterior to the fi ter, an outrfiow pipe *leading from said filter, and a partition arranged in the upper portion of the tank and inwardly and downwardly sloped toward a "-central thus described the invention, what a tank, a' filtering chamber in the upper portion of the tank, a filtering or separating diaphra of textile closing the lower en of said aring chamber, a wire fabric reinforcement extending over said separating diaphragm and secured to the filtering chamber, means for admitting a supply into the u per portion of the tank exterior to the fi tering chamber, leading from said filtering chamber. 3. An -oil filter comprising a, tank havin a draw-off in its lower portion and provided in the sides near its upper end with hand holes, a partition arranged within the u per portion of the tank and-having its mid portion depressed and formed with an openmg and having a series of small openings -near,its upper outer edge, a rim pendent phragm stretched over and secured to the ower end of the rim, a reinforcement arran ed above said diaphragm and connected wit the upper portion of the tank exterior a perpendicular position to about the center of the u per chamber, whence it turns at'ri ht angles running horizontal, starting para] el with the outer wall but declining toward it until it comes in contact with same, and an out-flow pipe connected with the top of the tank: oppositethe space inclosed by said pendentrim.

v p FRANK D. FREEMAN. YVitness es V CB. DAVIS,

ARTHUR Ln SUEUR'.

to the rim, the in-fiow pipe continuing in from the top of the tank, a separating dia- I In testimony whereof I afiix my signature in presence of two witnesses. x 

